STOCKHOLDERS EQUITY (Tables)

3 Months Ended

Mar. 31, 2023

STOCKHOLDERS' EQUITY

Summary of activity for stock options and restricted stock

The following table summarizes the activity for stock options and restricted stock for the three months ended March 31, 2023:

	Stock Options	Restricted Stock
Equity awards outstanding, beginning of year	5,135,685	8,732,286
Changes during the year:
Granted	—	3,017,736
Exercised or vested	(66,701)	(1,175,347)
Expired or Forfeited	(192,500)	(73,787)
Equity awards outstanding, end of period	4,876,484	10,500,888

Schedule of compensation cost related to unvested awards

As of March 31, 2023, total compensation cost related to unvested awards not yet recognized and the weighted-average periods over which the awards are expected to be recognized were as follows:

(in thousands)		Stock Options	Restricted Stock
Unrecognized compensation cost	$	6,988	$	51,264
Expected weighted-average period in years of compensation cost to be recognized		3.1		3.2